CVE-2022-1471
CRITICAL 9.8EPSS 99.6%
SnakeYaml's Constructor() class does not restrict types which can be instantiated during deserialization. Deserializing yaml content provided by an attacker can lead to remote code execution. We recommend using SnakeYaml's SafeConsturctor when parsing untrusted content to restrict deserialization. We recommend upgrading to version 2.0 and beyond.
- CVSS v3.1
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1
- 8.3 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L - CVSS v3.1
- 8.3 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L - EPSS
- 99.57% chance of exploitation in the next 30 days, 100th percentile
- Published
- 2022-12-01
- Updated
- 2025-06-18
Proof-of-concept exploits (12)
- google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2
- advisories/GHSA-mjmj-j48q-9wg2
- 1fabunicorn/SnakeYAML-CVE-2022-1471-POC8★ · 2023-03-02
- Franky-Lim24/snakeyaml_cve_poc0★ · 2025-04-04
- falconkei/snakeyaml_cve_poc4★ · 2023-12-24
- seal-sean-org/seans-surf-and-skate
- seal-sean-org/yaml-payload
- seal-sec-demo-2/Java-Example
- seal-sec-demo-2/yaml-payload
- NoussairBN/LAB19-Snake
- seal-sec-demo-2/seans-surf-and-skate
- seal-sec-demo-2/yaml-payload-2